In MySQL Multiple instance, default instance is running, second instance is not

I was made a setup to create multiple instances on the ubuntu machine. When I start mysql instances mysqld1 is running but mysqld2 is not running. root@ubuntu:/var/lib# mysqld_multi report Reporting MySQL servers MySQL server from group: mysqld1 is running MySQL server from group: mysqld2 is not running Below is my my.cnf file : [client] port = 3306 socket = /var/run/mysqld/mysqld.sock [mysqld_safe] socket = /var/run/mysqld/mysqld.sock nice = 0 [mysqld] basedir = /usr tmpdir = /tmp skip-external-locking bind-address = 127.0.0.1 key_buffer = 16M max_allowed_packet = 16M thread_stack = 192K thread_cache_size = 8 myisam-recover = BACKUP query_cache_limit = 1M query_cache_size = 16M expire_logs_days = 10 max_binlog_size = 100M [mysqld_multi] mysqld = /usr/bin/mysqld_safe mysqladmin = /usr/bin/mysqladmin log = /var/log/mysqld_multi.log user = multi_admin password = admin123 [mysqld1] port = 3306 datadir = /var/lib/mysql pid-file = /var/lib/mysql/mysqld.pid socket = /var/lib/mysql/mysql.sock user = mysql log-error = /var/log/mysql1.err [mysqld2] port = 3307 datadir = /var/lib/mysql-databases/mysqld2 pid-file = /var/lib/mysql-databases/mysqld2/mysql.pid socket = /var/lib/mysql-databases/mysqld2/mysql.sock user = mysql log-error = /var/log/mysql2.err [mysqldump] quick quote-names max_allowed_packet = 16M [mysql] [isamchk] key_buffer = 16M !includedir /etc/mysql/conf.d/ When I check my error log file mysql2.err, the error was like, 130120 18:41:59 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql-databases/mysqld2 130120 18:41:59 [Warning] Can't create test file /var/lib/mysql-databases/mysqld2/ubuntu.lower-test 130120 18:41:59 [Warning] Can't create test file /var/lib/mysql-databases/mysqld2/ubuntu.lower-test 130120 18:41:59 [Note] Plugin 'FEDERATED' is disabled. /usr/sbin/mysqld: Can't find file: './mysql/plugin.frm' (errno: 13) 130120 18:41:59 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it. 130120 18:41:59 InnoDB: Initializing buffer pool, size = 8.0M 130120 18:41:59 InnoDB: Completed initialization of buffer pool 130120 18:41:59 InnoDB: Operating system error number 13 in a file operation. InnoDB: The error means mysqld does not have the access rights to InnoDB: the directory. InnoDB: File name ./ibdata1 InnoDB: File operation call: 'create'. InnoDB: Cannot continue operation. 130120 18:41:59 mysqld_safe mysqld from pid file /var/lib/mysql-databases/mysqld2/mysql.pid ended Below is my apparmor file. #include /usr/sbin/mysqld { capability dac_override, capability sys_resource, capability setgid, capability setuid, network tcp, /etc/hosts.allow r, /etc/hosts.deny r, /etc/mysql/*.pem r, /etc/mysql/conf.d/ r, /etc/mysql/conf.d/* r, /etc/mysql/*.cnf r, /usr/lib/mysql/plugin/ r, /usr/lib/mysql/plugin/*.so* mr, /usr/sbin/mysqld mr, /usr/share/mysql/** r, /var/log/mysql.log rw, /var/log/mysql.err rw, /var/lib/mysql/ r, /var/lib/mysql/** rwk, /var/log/mysql/ r, /var/log/mysql/* rw, /{,var/}run/mysqld/mysqld.pid w, /{,var/}run/mysqld/mysqld.sock w, /sys/devices/system/cpu/ r, } My second instance data directory path is : /var/lib/mysql-databases/mysqld2/mysql Please let me know how to fix this issue. Thanks in advance.